Computer system having an expansion device for virtualizing a migration source logical unit
    82.
    发明授权
    Computer system having an expansion device for virtualizing a migration source logical unit 有权
    具有用于虚拟化迁移源逻辑单元的扩展装置的计算机系统

    公开(公告)号:US08015351B2

    公开(公告)日:2011-09-06

    申请号:US12945984

    申请日:2010-11-15

    IPC分类号: G06F13/00

    摘要: A migration destination storage creates an expansion device for virtualizing a migration source logical unit. A host computer accesses an external volume by way of an access path of a migration destination logical unit, a migration destination storage, a migration source storage, and an external volume. After destaging all dirty data accumulated in the disk cache of the migration source storage to the external volume, an expansion device for virtualizing the external volume is mapped to the migration destination logical unit.

    摘要翻译: 迁移目的地存储创建用于虚拟化迁移源逻辑单元的扩展设备。 主机通过迁移目的地逻辑单元,迁移目的地存储,迁移源存储和外部卷的访问路径访问外部卷。 将迁移源存储器的磁盘缓存中累积的所有脏数据降级到外部卷后,将用于虚拟化外部卷的扩展设备映射到迁移目的地逻辑单元。

    Virtual volume control method involving device stop
    83.
    发明授权
    Virtual volume control method involving device stop 有权
    涉及设备停止的虚拟音量控制方法

    公开(公告)号:US07908433B2

    公开(公告)日:2011-03-15

    申请号:US12700039

    申请日:2010-02-04

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    摘要: Provided is a storage system capable of starting/stopping a disk drive. At the time of allocating a logical device, it is judged, based on attributes including a purpose of the logical device, whether or not control can be performed in terms of start/stop of an allocation target disk drive to determine an allocation destination disk drive. Further, in the case where access to a specific logical device is stopped due to release of a path definition or other such cause, it is judged whether or not a disk drive corresponding to the logical device can be stopped. When it is judged that the disk drive can be stopped, the disk drive is stopped. When it is judged that the disk drive cannot be stopped, the logical device is migrated to another disk drive that can be stopped, a migration destination disk drive is stopped.

    摘要翻译: 提供了能够启动/停止磁盘驱动器的存储系统。 在分配逻辑设备时,基于包括逻辑设备的目的的属性来判断是否可以根据分配目标磁盘驱动器的启动/停止执行控制以确定分配目的地磁盘驱动器 。 此外,在由于路径定义或其他原因的解除而停止访问特定逻辑设备的情况下,判断与逻辑设备相对应的盘驱动器是否可以停止。 当判断为可以停止磁盘驱动器时,停止磁盘驱动器。 当判断为无法停止磁盘驱动器时,将逻辑设备迁移到可以停止的另一个磁盘驱动器,停止迁移目标磁盘驱动器。

    Storage system having dynamic volume allocation function
    84.
    发明授权
    Storage system having dynamic volume allocation function 失效
    具有动态卷分配功能的存储系统

    公开(公告)号:US07757058B2

    公开(公告)日:2010-07-13

    申请号:US12149293

    申请日:2008-04-30

    IPC分类号: G06F12/08

    摘要: Access to a plurality of logical devices is enabled regardless of the number of ports provided in a storage system and the number of logical devices that can be allocated to a single port, thereby improving the usability of the logical devices. A storage system comprises a plurality of logical devices, a target device which is the object of access from a computer, and a juke box system for allocating one of the plurality of logical devices to the target device. The juke box system changes the logical device that is allocated to the target device in accordance with a request from the computer.

    摘要翻译: 不管存储系统中提供的端口数量以及可以分配给单个端口的逻辑设备的数量如何,都可以访问多个逻辑设备,从而提高逻辑设备的可用性。 存储系统包括多个逻辑设备,作为来自计算机的访问对象的目标设备和用于将多个逻辑设备中的一个逻辑设备分配给目标设备的点播机系统。 自动点唱机系统根据来自计算机的请求改变分配给目标设备的逻辑设备。

    Computer system having an expansion device for virtualizing a migration source logical unit
    85.
    发明授权
    Computer system having an expansion device for virtualizing a migration source logical unit 有权
    具有用于虚拟化迁移源逻辑单元的扩展装置的计算机系统

    公开(公告)号:US07461196B2

    公开(公告)日:2008-12-02

    申请号:US11478611

    申请日:2006-07-03

    IPC分类号: G06F13/00

    摘要: A migration destination storage creates an expansion device for virtualizing a migration source logical unit. A host computer accesses an external volume by way of an access path of a migration destination logical unit, a migration destination storage, a migration source storage, and an external volume. After destaging all dirty data accumulated in the disk cache of the migration source storage to the external volume, an expansion device for virtualizing the external volume is mapped to the migration destination logical unit.

    摘要翻译: 迁移目的地存储创建用于虚拟化迁移源逻辑单元的扩展设备。 主机通过迁移目的地逻辑单元,迁移目的地存储,迁移源存储和外部卷的访问路径访问外部卷。 将迁移源存储器的磁盘缓存中累积的所有脏数据降级到外部卷后,将用于虚拟化外部卷的扩展设备映射到迁移目的地逻辑单元。

    INFORMATION SYSTEM AND DATA TRANSFER METHOD
    86.
    发明申请
    INFORMATION SYSTEM AND DATA TRANSFER METHOD 有权
    信息系统和数据传输方法

    公开(公告)号:US20080104346A1

    公开(公告)日:2008-05-01

    申请号:US11850918

    申请日:2007-09-06

    IPC分类号: G06F12/16

    摘要: Availability of an information system including a storage apparatus and a computer is improved. First and second storage apparatuses execute remote copy of copying data written into a first primary volume from the computer to a second primary volume, at least one of the first and second storage apparatuses executes local copy of copying the data written into the first or second primary volume in a self-storage apparatus to the corresponding first or second secondary volume, and the computer switches the destination of a write request of the data from the first storage apparatus to the second storage apparatus in case of a failure occurring in the first storage apparatus.

    摘要翻译: 改进了包括存储装置和计算机的信息系统的可用性。 第一和第二存储装置将从计算机写入第一主卷的复制数据的远程副本执行到第二主卷,第一和第二存储装置中的至少一个执行拷贝写入第一或第二主卷的数据的本地副本 自动存储装置中的音量到相应的第一或第二次音量,并且计算机在第一存储装置发生故障的情况下将数据的写入请求的目的地从第一存储装置切换到第二存储装置 。

    Method for coupling storage devices of cluster storage
    87.
    发明授权
    Method for coupling storage devices of cluster storage 有权
    耦合集群存储设备的方法

    公开(公告)号:US07269646B2

    公开(公告)日:2007-09-11

    申请号:US10768648

    申请日:2004-02-02

    IPC分类号: G06F15/173

    摘要: In a cluster storage system, storage areas scattered in a plurality of storage nodes are coupled into a single storage area for access by a host computer. The cluster storage system has a first storage node and a second storage node, each of which has a disk and a control processor for controlling input/output to/from the disk, and a host interface node for connecting the first and second storage nodes to a computer. The first storage node manages a storage area having a first storage area existing in the first storage node and a second storage area existing in the second storage node as a logical device. Upon receipt of an access request having identification information corresponding to the logical device from the computer, the host interface node forwards the access request to the first storage node.

    摘要翻译: 在集群存储系统中,分散在多个存储节点中的存储区域被耦合到单个存储区域中以供主计算机访问。 集群存储系统具有第一存储节点和第二存储节点,每个第一存储节点和第二存储节点都具有磁盘和用于控制到/从磁盘的输入/输出的控制处理器,以及用于将第一和第二存储节点连接到 一台电脑。 第一存储节点管理具有存在于第一存储节点中的第一存储区域和存在于第二存储节点中的第二存储区域作为逻辑设备的存储区域。 在从计算机接收到具有与逻辑设备相对应的识别信息的访问请求时,主机接口节点将访问请求转发到第一存储节点。

    Storage subsystem
    88.
    发明申请
    Storage subsystem 有权
    存储子系统

    公开(公告)号:US20050172166A1

    公开(公告)日:2005-08-04

    申请号:US10777107

    申请日:2004-02-13

    IPC分类号: G06F12/00 G06F11/00 G06F11/14

    摘要: The data up to a point of time whereat failure has occurred will be restored at high speed at a remote site without imposing any burden on a host. The first storage system on the master side processes an I/O request from the host, and as a result of I/O processing to the second storage system on the remote side, transmits the update data. The second storage system retains data received from the first storage system as update log data. The host transmits a command for settling a state of an application to the first storage system as data, and the first storage system transmits the data to the second storage system. The host and the second storage system both retain an identifier corresponding to the command, and relate the identifier to the log data. Thereby, the host designates the identifier at any given time, whereby the second storage system restores the data at any given time.

    摘要翻译: 直到发生故障的时间点的数据将在远程站点高速恢复,而不会对主机造成任何负担。 主机侧的第一存储系统处理来自主机的I / O请求,并且作为对远程侧的第二存储系统的I / O处理的结果,发送更新数据。 第二存储系统将从第一存储系统接收的数据保留为更新日志数据。 主机向第一存储系统发送用于确定应用状态的命令作为数据,并且第一存储系统将数据发送到第二存储系统。 主机和第二存储系统都保留与该命令对应的标识符,并将该标识符与日志数据相关联。 因此,主机在任何给定的时间指定标识符,由此第二存储系统在任何给定的时间恢复数据。

    Storage system having dynamic volume allocation function
    90.
    发明授权
    Storage system having dynamic volume allocation function 有权
    具有动态卷分配功能的存储系统

    公开(公告)号:US07991974B2

    公开(公告)日:2011-08-02

    申请号:US12796702

    申请日:2010-06-09

    IPC分类号: G06F12/02

    摘要: Access to a plurality of logical devices is enabled regardless of the number of ports provided in a storage system and the number of logical devices that can be allocated to a single port, thereby improving the usability of the logical devices. A storage system comprises a plurality of logical devices, a target device which is the object of access from a computer, and a juke box system for allocating one of the plurality of logical devices to the target device. The juke box system changes the logical device that is allocated to the target device in accordance with a request from the computer.

    摘要翻译: 不管存储系统中提供的端口数量以及可以分配给单个端口的逻辑设备的数量如何,都可以访问多个逻辑设备,从而提高逻辑设备的可用性。 存储系统包括多个逻辑设备,作为来自计算机的访问对象的目标设备和用于将多个逻辑设备中的一个逻辑设备分配给目标设备的点播机系统。 自动点唱机系统根据来自计算机的请求改变分配给目标设备的逻辑设备。